Available Now
SKU: 001-09746

Adaline | 3ct Old Mine Cushion Lab Diamond Engagement Ring

$7,740.00 AUD
Tax included.
Find Your Size

Dispatch Available Tuesday, July 21

Speak With an Expert

Product Details

Adaline is an Old Mine Cut Lab Diamond Engagement Ring in 18K Yellow Gold. The diamond is set in an 8 claw. This unique design features a lowered bezel setting with a slightly thicker band. 

Designed and made by Matthews Jewellers, Newcastle. Fine jewellers since 1957.

Centre Carat Weight: 3.02ct Lab Grown Diamond

Colour: D

Clarity: VS1

Report Number: IGI751510062

Setting Style: Georgian 

Band: 2mm x 1.5mm

Metal Colour: 18k Yellow Gold

Finger Size: M

Free re-sizing and shipping available within 24 hours of purchase (Monday to Friday). Please put your size in the notes section at checkout. 

20% off your Wedding Rings

Enjoy 20% off your wedding rings and 10% back in Matthews Money when you purchase your engagement ring with us.

Shipping and Timing


We offer complimentary Express Shipping Australia-wide on all orders. Each piece is carefully packaged and fully insured for peace of mind during transit.

For ready-to-wear items, please allow 24hours for dispatch (Monday to Friday).

Made-to-order and custom pieces typically take 6–8 weeks. Need it sooner? Contact us—we’ll do our best to accommodate your timeline.

why choose us

Luxury Without Compromise

30-Day Free Returns

30-Day Free Returns

We offer free 30-day returns on all Ready to Wear pieces purchased online.

Simply contact us for a free prepaid satchel - just ensure your item is in its original boxing before sending it back.

Your original postage bag is reusable, so place your item inside, seal it up, and send it our way.

Our Guarantee

Our Guarantee

With decades of experience and a proud family legacy, we stand behind every piece that leaves our workshop. Each item is a reflection of our craftsmanship, integrity, and care—backed by our Lifetime Guarantee. When you choose us, you're choosing quality that lasts a lifetime.

Complimentary Resizing

Complimentary Resizing

We offer complimentary resizing for the lifetime of your engagement ring. If you need your ring resized before it’s shipped, please let us know and include your preferred size in the notes section at checkout.

Not sure on the size? Your piece can be resized after your proposal. Get in touch and we can organise this.

our recommendation

You may also like